Aerospace Defense Coatings of Georgia

Sulfuric Anodizing

Anodized Aircraft Parts

Sulfuric Anodizing (Type II) is performed by submerging the component in a room temperature sulfuric acid bath for 30 to 60 minutes. Some benefits are:

  • Corrosion Resistance
  • Abrasion Resistance
  • Electrical Resistance
  • All Colors Available

Sulfuric Anodizing Capabilities

Type of Process
Sulfuric Anodizing
Component or part gains increased corrosion resistance. Also has greater abrasion and electrical resistance.
Process Approvals
For Sulfuric Anodizing we adhere to:
  • AMS 2472: Anodic Treatment of Aluminum Alloys Sulfuric Acid Process, Dyed Coating
  • CSFS020: Anodize, Chromic Acid, Sulfuric Acid and Hard Coat
  • PS 13201: Anodize
MIL-A-8625MIL-A-8625 (PDF - 1627KB)
Anodic Oxide builds up on the part.
Base Materials Worked
Aluminum and aluminum alloys.
The Sulfuric Anodizing Types we adhere to are:
  • Type II - Sulfuric acid anodizing, conventional coatings produced from sulfuric acid bath
  • Type IIB - Thin sulfuric acid anodizing, for use as a non-chromate alternative for Type I and IB coatings
The Sulfuric Anodizing Classes we adhere to are:
  • Class 1 - Non Dyed
  • Class 2- Dyed
We can provide all colors.
Anodizing Thickness
From 1.8µ-25.4µ.
All Sulfuric Anodizing processes are performed manually to ensure the proper care is given to each step.
Additional Operations
We offer several additional operations that may be required for your product: Cleaning, Magnetic Particle Inspection (NDT), Penetrant Inspection (NDT), Hardness & Conductivity Testing (NDT), Dry Film/Solid Film Lubricants and Primer & Topcoat Painting.

Please let us know if you require any of these additional services.
Quality Control
All processes are subject to our rigorous Quality Assurance process. All work is reviewed and inspected to be in compliance with the specification (Process Approval requested).
Industries Served
We are committed to providing the aerospace and defense industries with the highest quality metal finishing, testing, and painting available.
Environmental Responsibility
As a corporate citizen, we are committed to responsibly protecting our environment. We have a state-of-the-art $2 Million Waste Prevention System in place. All hazardous waste materials are 100% recycled and rendered harmless.

We know that this is important to you, and so we maintain an open door policy concerning environmental inspections of our facility.
With over 50 years in the metal finishing industry, we have the expertise you can depend on.
Minimum Order
We can provide Sulfuric Anodizing for prototype to high volume runs.
Drawing Submissions
We accept both e-mailed (DWG, DXF, PDF, all image files) and faxed drawings.
Special Instructions
Please Attach Drawing to Request Information Form.